/**
 * Resource execution spinner — animated in TTY, static otherwise.
 *
 * Provides visual feedback during resource execution. When writing to a TTY,
 * displays an animated spinner. Otherwise, outputs a static indicator.
 */
/** Options for creating a Spinner. */
export type SpinnerOptions = {
    /** The writer to output to. Defaults to process.stderr. */
    writer?: {
        isTerminal: () => boolean;
        columns?: () => number | undefined;
        writeSync(p: Uint8Array): number;
    } | undefined;
    /** Spinner interval in ms. Defaults to 80. */
    intervalMs?: number | undefined;
};
/**
 * Resource execution spinner.
 *
 * - In TTY mode: animates through braille frames on a single line.
 * - In non-TTY mode: prints the message once with a static marker.
 */
export declare class Spinner {
    #private;
    constructor(opts?: SpinnerOptions);
    /** Start the spinner with a message. */
    start(message: string): void;
    /** Stop the spinner and clear the line (TTY only). */
    stop(): void;
    /** Pause the spinner animation and clear the line so other output can print. */
    pause(): void;
    /** Resume the spinner animation after a pause. */
    resume(): void;
}
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